Propagate nested importScripts() error events outwards.

Source/bindings/core/v8/WorkerScriptController.h

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 23 matching lines @@
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/text/TextPosition.h"
 #include <v8.h>
 
 namespace WebCore {
 
 class ErrorEvent;
+class ExceptionState;
 class ScriptSourceCode;
 class ScriptValue;
 class WorkerGlobalScope;
 
 struct WorkerGlobalScopeExecutionState {
     WorkerGlobalScopeExecutionState()
         : hadException(false)
         , lineNumber(0)
         , columnNumber(0)
     {
@@ skipping 11 matching lines @@
 public:
     explicit WorkerScriptController(WorkerGlobalScope&);
     ~WorkerScriptController();
 
     WorkerGlobalScope& workerGlobalScope() { return m_workerGlobalScope; }
 
     bool initializeContextIfNeeded();
 
     void evaluate(const ScriptSourceCode&, RefPtrWillBeRawPtr<ErrorEvent>* = 0);
 
-    void rethrowExceptionFromImportedScript(PassRefPtrWillBeRawPtr<ErrorEvent>);
+    void rethrowExceptionFromImportedScript(PassRefPtrWillBeRawPtr<ErrorEvent>, ExceptionState&);
 
     // Async request to terminate a future JS execution. Eventually causes termination
     // exception raised during JS execution, if the worker thread happens to run JS.
     // After JS execution was terminated in this way, the Worker thread has to use
     // forbidExecution()/isExecutionForbidden() to guard against reentry into JS.
     // Can be called from any thread.
     void scheduleExecutionTermination();
     bool isExecutionTerminating() const;
 
     // Called on Worker thread when JS exits with termination exception caused by forbidExecution() request,
@@ skipping 27 matching lines @@
     bool m_executionForbidden;
     bool m_executionScheduledToTerminate;
     mutable Mutex m_scheduledTerminationMutex;
     RefPtrWillBePersistent<ErrorEvent> m_errorEventFromImportedScript;
     OwnPtr<V8IsolateInterruptor> m_interruptor;
 };
 
 } // namespace WebCore
 
 #endif // WorkerScriptController_h